As the new crown epidemic continues, Tuen Mun Zall Plaza Harbour Restaurant has added new cases one after another. Today (27th), five more people were diagnosed and related to the group.
Au Ka-wing, chief physician of the Infectious Diseases Division of the Centre for Health Protection of the Department of Health, said that after the EMSD's inspection, it was found that the hourly air exchange rate and fresh air volume of the Harbour Restaurant were both lower than the standard, and both were less than half of the standard. times, but the measurement results are only 1.37 to 2.12 times, that is, the worst case is three-quarters lower than the accuracy, which is believed to be the cause of the outbreak.
The recent increase in the number of confirmed cases means that social distancing measures need to be adjusted again?
Au Jiarong said that although the number of cases has increased, the number of critically ill patients admitted to the hospital and the number of deaths are still at a stable level.
There were five more cases in the harbour restaurant group in Zall Plaza, Tuen Mun today, with a total of 41 cases. Au Jiarong pointed out that all of them were diners, involving 24 men and 17 women. The source of infection has not yet been determined, but there may be super-spreaders that night.
He continued to point out that due to the fact that it has been a period of time, it is difficult to find the source even with mandatory testing.
Au Ka-wing also revealed that the EMSD had inspected and inspected the ventilation system of the harbour restaurant, and found that its hourly ventilation rate and fresh air volume were lower than the standard, which is expected to be the cause of the outbreak.
He went on to point out that according to the regulations, the hourly air exchange rate of the restaurant, together with the effect of the air purifier, needs to reach 6 times per hour, but the result of the measurement on that day was only 1.37 to 2.12 times, which proves that the ventilation rate is insufficient.
▼Compulsory testing announcement from June 20▼
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The number of confirmed cases may rise again
In terms of fresh air volume, Ou said that it generally takes 4 or more times per hour, but only about 1.3 times on the day, which proves that the air equipment needs to be improved, and the operation can only be resumed after passing the assessment of the EMSD.
He said that other restaurants in the same group have not yet found a group. At present, all restaurants in Hong Kong must meet relevant standards. It is believed that law enforcement agencies and the FEHD will conduct regular inspections and inspections.
There are 1,719 local cases today, which together with the 154 imported cases, is 1,873.
When asked why the current social distancing measures have not been tightened until July 13, Au Jiarong said that the number of new cases in the past period has hovered between 1,500 and 1,800, and the past three weeks have seen "level 1 tightening". , the number of cases has reached nearly 2,000 so far.
However, he continued that the society has returned to normal life, social measures have been relaxed, and the relevant situation is also expected.
He said that even though the number of cases has increased, the number of severe and fatal cases admitted to the hospital is still at a stable level.
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